If you want to find out more about Dianetics and Scientology, the best way to do this is to read an L. Ron Hubbard book on the subject. I personally recommend you read The Way to Happiness.
This book really helped me. I have gotten this book distributed in certain areas and have found that where it has been made available, the people who read it actually followed its precepts and worked toward ensuring that their environment was clean and improved.